Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812302 | Process for preparing high purity Mn.sub.3 O.sub.4 | Dwight A. Schulke | 1989-03-14 |
| 4762552 | Improved process for beneficating iron-containing titaniferous ores | Roger A. Baldwin, Keshav P. Patel, Patricia J. Shreve | 1988-08-09 |
| 4719110 | Boron-containing wood preservatives | Keshav P. Patel, Roger A. Baldwin | 1988-01-12 |
| 4605421 | Process for the preparation of a carbonaceous-derived solid fuel product | Jim W. Kauffman, Roger A. Baldwin | 1986-08-12 |
| 4595558 | Additive agents for use in the manufacture of molded particulate metal articles | Roger A. Baldwin, Jim W. Kauffman | 1986-06-17 |
| 4560675 | Adsorbent for separating fatty acids from rosin acids | Michael T. Cleary | 1985-12-24 |
| 4522723 | Process for the removal and recovery of heavy metals from aqueous solutions | Jim W. Kauffman | 1985-06-11 |
| 4519913 | Process for the removal and recovery of selenium from aqueous solutions | Roger A. Baldwin, John C. Stauter, Jim W. Kauffman | 1985-05-28 |
| 4519912 | Process for the removal of sulfate and metals from aqueous solutions | Jim W. Kauffman, Roger A. Baldwin | 1985-05-28 |
| 4495106 | Adsorbent and process for separating fatty acids from rosin acids | Michael T. Cleary | 1985-01-22 |
| 4489043 | Manufacture of manganous sulfate solutions | Paul D. Bowerman, Thomas W. Clapper | 1984-12-18 |
| 4483828 | Method of producing manganese sulfate solutions of improved purity | Virgil J. Barczak, Paul D. Bowerman, Theodore A. Rado | 1984-11-20 |
| 4382082 | Recovery of cobalt values by absorption from ammoniacal solution | William K. Tolley | 1983-05-03 |
| 4322390 | Hydrometallurgical recovery of copper, cobalt nickel with reductive and oxidative leaching | William K. Tolley | 1982-03-30 |
| 4280839 | Recovery of metal values from a metal bearing source of nickel and vanadium | William K. Tolley | 1981-07-28 |
| 4276083 | Recovery of metal values from a metal bearing source of nickel and vanadium | William K. Tolley, William Rostoker | 1981-06-30 |
| 4269809 | Recovery in titanium metal values by solvent extraction | William K. Tolley | 1981-05-26 |